生成 PHPUnit 代码覆盖率报告时无法重新声明类错误

问题描述

使用 Zend Framework 1.10 和 Doctrine 2 (Beta1) 启动项目.我在自己的库代码中使用命名空间.

在生成代码覆盖率报告时，我收到关于重新声明类的致命错误.为了提供更多信息，我在我的 phpunit 可执行文件中注释掉了 xdebug_disable() 调用，以便您可以看到函数跟踪(禁用局部变量输出，因为输出太多).

这是我的终端输出:

(我不知道为什么它会显示两次错误......?)

这是我的 phpunit.xml:

<!-- bootstrap.php 将目录更改为trunk/code/tests，下面的所有路径都相对于这个目录.--><testsuite name="My Promotions"><目录>./</目录></testsuite><过滤器><白名单><目录后缀=".php">../application</directory><目录后缀=".php">../library/Cob</directory><排除><!-- 通过添加以下行，我可以消除错误--><file>../library/Cob/Application/Resource/HelperBroker.php</file><directory suffix=".phtml">../application</directory><目录后缀=".php">../application/doctrine</directory><文件>../application/Bootstrap.php</file><目录后缀=".php">../library/Cob/Tools</directory></排除></白名单></过滤器><日志记录><log type="junit" target="../../build/reports/tests/report.xml"/><log type="coverage-html" target="../../build/reports/coverage" charset="UTF-8"yui="true" highlight="true" lowUpperBound="50" highLowerBound="80"/></日志记录></phpunit>

我在哪个接缝中添加了一个标签来隐藏这个问题.我确实有另一个应用程序资源，但没有问题(另一个是 Doctrine 2 资源).我不确定为什么它特定于这个类，我的整个库都是自动加载的，所以它们在任何地方都没有任何包含/要求调用.我想应该注意 HelperBroker 是文件系统中第一个源自 library/Cob 的文件

我使用所有软件(Zend Server、Zend Framework、Doctrine 2 Beta1、Phing、PHPUnit、PEAR)的最新/最近版本在 Snow Leopard 上.

总结这个问题的一般答案:

此错误消息通常表示自动加载和/或 require 语句存在问题.

在代码覆盖率报告生成期间，phpunit 要求处理中的每个*.php.这可以关闭使用 addUncoveredFilesFromWhitelist=false 作为参数，但建议保持此状态.

可能的原因

在这些情况下往往会发生的是，其中一个文件有一个 require 语句，该语句再次需要一个已经加载的类(因为它不是 require_once).

其他原因可能是

• 类的重复定义(一个用于调试，一个用于生产，应该通过继承而不是加载正确的php文件来解决)

• 大小写不一致导致 php 代码中的错误，例如:

  if( !$classesLoaded['ThIsClass']) require_once(...); 在多个不同大小写的地方.

• 该类在测试中根本没有被加载，但是使用当时加载的类的名称创建了一个模拟对象.那些也可能发生冲突并导致该错误

Starting a project with Zend Framework 1.10 and Doctrine 2 (Beta1). I am using namespaces in my own library code.

When generating code coverage reports I get a Fatal Error about Redeclaring a class. To provide more info, I've commented out the xdebug_disable() call in my phpunit executable so you can see the function trace (disabled local variables output because there was too much output).

Here's my Terminal output:

$ phpunit
PHPUnit 3.4.12 by Sebastian Bergmann.

........

Time: 4 seconds, Memory: 16.50Mb

OK (8 tests, 14 assertions)

Generating code coverage report, this may take a moment.PHP Fatal error:  Cannot redeclare class CobApplicationResourceHelperBroker in /Users/Cobby/Sites/project/trunk/code/library/Cob/Application/Resource/HelperBroker.php on line 93
PHP Stack trace:
PHP   1. {main}() /usr/local/zend/bin/phpunit:0
PHP   2. PHPUnit_TextUI_Command::main() /usr/local/zend/bin/phpunit:54
PHP   3. PHPUnit_TextUI_Command->run() /usr/local/zend/share/pear/PHPUnit/TextUI/Command.php:146
PHP   4. PHPUnit_TextUI_TestRunner->doRun() /usr/local/zend/share/pear/PHPUnit/TextUI/Command.php:213
PHP   5. PHPUnit_Util_Report::render() /usr/local/zend/share/pear/PHPUnit/TextUI/TestRunner.php:478
PHP   6. PHPUnit_Framework_TestResult->getCodeCoverageInformation() /usr/local/zend/share/pear/PHPUnit/Util/Report.php:97
PHP   7. PHPUnit_Util_Filter::getFilteredCodeCoverage() /usr/local/zend/share/pear/PHPUnit/Framework/TestResult.php:623

Fatal error: Cannot redeclare class CobApplicationResourceHelperBroker in /Users/Cobby/Sites/project/trunk/code/library/Cob/Application/Resource/HelperBroker.php on line 93

Call Stack:
    0.0004     322888   1. {main}() /usr/local/zend/bin/phpunit:0
    0.0816    4114628   2. PHPUnit_TextUI_Command::main() /usr/local/zend/bin/phpunit:54
    0.0817    4114964   3. PHPUnit_TextUI_Command->run() /usr/local/zend/share/pear/PHPUnit/TextUI/Command.php:146
    0.1151    5435528   4. PHPUnit_TextUI_TestRunner->doRun() /usr/local/zend/share/pear/PHPUnit/TextUI/Command.php:213
    4.2931   16690760   5. PHPUnit_Util_Report::render() /usr/local/zend/share/pear/PHPUnit/TextUI/TestRunner.php:478
    4.2931   16691120   6. PHPUnit_Framework_TestResult->getCodeCoverageInformation() /usr/local/zend/share/pear/PHPUnit/Util/Report.php:97
    4.2931   16691148   7. PHPUnit_Util_Filter::getFilteredCodeCoverage() /usr/local/zend/share/pear/PHPUnit/Framework/TestResult.php:623

(I have no idea why it shows the error twice...?)

And here is my phpunit.xml:

<phpunit bootstrap="./code/tests/application/bootstrap.php" colors="true">
    <!-- bootstrap.php changes directory to trunk/code/tests,
    all paths below are relative to this directory. -->

    <testsuite name="My Promotions">
        <directory>./</directory>
    </testsuite>

    <filter>
        <whitelist>
            <directory suffix=".php">../application</directory>
            <directory suffix=".php">../library/Cob</directory>
            <exclude>
                    <!-- By adding the below line I can remove the error -->
                <file>../library/Cob/Application/Resource/HelperBroker.php</file>
                <directory suffix=".phtml">../application</directory>
                <directory suffix=".php">../application/doctrine</directory>
                <file>../application/Bootstrap.php</file>
                <directory suffix=".php">../library/Cob/Tools</directory>
            </exclude>
        </whitelist>
    </filter>

    <logging>
        <log type="junit" target="../../build/reports/tests/report.xml" />
        <log type="coverage-html" target="../../build/reports/coverage" charset="UTF-8"
            yui="true" highlight="true" lowUpperBound="50" highLowerBound="80" />
    </logging>
</phpunit>

I have added a tag inside the which seams to hide this problem. I do have another application resource but it doesn't seam to have a problem (the other one is a Doctrine 2 resource). I'm not sure why it is specific to this class, my entire library is autoloaded so their isn't any include/require calls anywhere. I guess it should be noted that HelperBroker is the first file in the filesystem stemming out from library/Cob

I am on Snow Leopard with the latest/recent versions of all software (Zend Server, Zend Framework, Doctrine 2 Beta1, Phing, PHPUnit, PEAR).

General answer to wrap this problem up:

This error message usually points to a problem with auto loading and or require statements.

During code coverage report generation phpunit is requireing every *.php that is in <whitelist>. This can be turned off using addUncoveredFilesFromWhitelist=false as a parameter but it is recommended to keep this on.

Possible reasons

What tends to happen in these cases is that one of the files has a require statement that requires an already loaded class again (as it is not a require_once).

Other reasons can be

• the duplicate definition of classes (one for debugging one for production, should be solved by inheritance not by loading the right php file)

• Inconsistent capitalization leading to errors in the php code like:

  if( !$classesLoaded['ThIsClass']) require_once(...); in multiple places with different capitalizations.

• The class not getting loaded at all in the tests but a mock object was created with the name of the then loaded class. Those can collide and lead to that error too

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